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1、助动词 do & does1.把句子变为一般疑问句：（变疑问，很简单，要把提到前）用法：有 be 找 be ,把 be 提前Is he a student?有 can找 can ，把 can 提前Can you fly a kite?有 must找 must ，把 must 提前Must you leave now?（ 有 will/would/could/ should 等，直接提前 ）2. 把句子变为否定句：（变否定很简单，be后要把not添）有 be 找 be ,be 后要把 not 添有 can 找 can ，can 后要把 not 添有 must 找 must ， （看情况用 mus
2、tnt 还是 neednt）3. 当句子里没有 be 动词 , 没有 can, must, will 等情态动词，怎么 办？找 do 或 does 来 帮忙提问， 否定We like playing football.Do you like playing football?We dont like playing football.2) He likes playing football.Does he like playing football?He doesnt like playing football.3）对划线部分提问 They play football after school
3、.What do they do after school?He plays football after school.What does he do after school?4.按要求改写句子：1） I know the answer. （一般疑问句） the answer?2）We can see some birds.（般疑问句）see b i r d s ?3）He designs clothes. （一般疑问句） he clothes?4）There are some flowers on the teachers desk.（一 般疑问句） flowers on the tea
4、chers desk?5）There are some apples on the tree.（否定句）There a pples on the tree.6）I think he is very old.（否定句）I t h i n k he very old.7）Please color it green. （否定句） c o l o r it green.8. These doctors are helpful.（变否定句）9. You may have some hot dogs.（ 般疑问句） ?. 10. There arent any pears in the box.（同 义句
5、）There are pears in the box.11. This sign means “No smoking” .What th is sign ?12. She looks young. （改一般疑问句） she you ng?13. She is young.（改为一般疑问句） ?14. My pencils are in the pencil-box.（对划线部分提问） you r pencils?15. I get up at six every day.对划线部分提问） you get up every day?16. I watch TV every day. （改为否定句）
